└ sport
   └ baseball
      ├ Batters' protective gear and helmets
      │ ├ helmet
      │ ├ elbow guard
      │ └ Other
      ├ referee's equipment
      ├ glove (esp. sports)
      │ └ Oil and care products
      ├ Baseball bags and cases
      │ └ Other baseball bags and cases
      ├ -wear (clothing)
      │ └ Other Baseball Wear
      ├ Equipment and fixtures
      └ Other Baseball Equipment
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